American Standard 2/4TEC3F18A1000A Assembly instructions

ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES
IMPORTANT — This Document is customer property and is to remain with this unit. Please return to service information
pack upon completion of work.
HAZARDOUS VOLTAGE - DISCONNECT POWER BEFORE SERVICING
WARNING:
Installer’s Guide
General Information 1
Installation Limitations & Recommendations 1-3
Unit Installation 3-4
Upflow 3
Downflow 3-4
Horizontal Left 4
Horizontal Right 4
Duct Connections 5
Refrigerant Piping 5
Condensate Drain Piping 5-6
Electrical — Power Wiring 6
Control Wiring 7
Checkout Procedure 11-12
Hook-up Diagrams 7-8
Outline Drawings 9-10
Contents
A. GENERAL INFORMATION
WARNING
!
THIS INFORMATION IS FOR USE BY INDIVIDUALS
HAVING ADEQUATE BACKGROUNDS OF ELECTRICAL
AND MECHANICAL EXPERIENCE. ANY ATTEMPT TO
REPAIR A CENTRAL AIR CONDITIONING PRODUCT
MAY RESULT IN PERSONAL INJURY AND/OR PROP-
ERTY DAMAGE. THE MANUFACTURER OR SELLER
CANNOT BE RESPONSIBLE FOR THE INTERPRETATION
OF THIS INFORMATION, NOR CAN IT ASSUME ANY
LIABILITY IN CONNECTION WITH ITS USE.
CAUTION
!
To prevent shortening its service life, the air handler
should not be used during the finishing phases of
construction. The low return air temperatures can lead
to the formation of condensate. Condensate in the
presence of chlorides and fluorides from paint, varnish,
stains, adhesives, cleaning compounds, and cement
creates a corrosive condition which may cause rapid
deterioration of the cabinet and internal components.
These instructions do not cover all variations in systems or
provide for every possible contingency. Should further
information be desired or particular problems arise which
are not covered sufficiently by this manual, contact your
local distributor or the manufacturer as listed on the air
handler nameplate.
These Air Handlers are shipped from the factory in the
upflow or horizontal right configuration and are fully
convertible to downflow or horizontal left. Refer to
Section B beginning on page 3 for additional information.
INSPECTION
Check carefully for any shipping damage. This must be
reported to and claims made against the transportation
company immediately. Check to be sure all major
components are in the unit. Any missing parts should
be reported to your supplier at once, and replaced with
authorized parts only.
CAUTION
!
Cardboard packing material must be removed from inside
the blower assembly before starting the unit. Failure to do
so may cause indoor blower motor failure.
INSTALLATION LIMITATIONS & RECOMMENDATIONS
The general location of the air handler is normally
selected by the architect, contractor and/or home owner for
the most effective application and satisfaction.
These air handlers are suitable for installation in a closet,
alcove or utility room with free, non-ducted, air return,
using the area space as a return air plenum. With ducted
supply air, if the minimum clearances to combustible
materials and service access are observed, the above
installations are suitable.
18-GE08D1-2
Convertible Air Handlers
1-1/2 – 5 Ton
2/4TEC3F18A1000A 2/4TEC3F42A1000A
2/4TEC3F24A1000A 2/4TEC3F48A1000A
2/4TEC3F30A1000A 2/4TEC3F55A1000A
2/4TEC3F36A1000A 2/4TEC3F60A1000A

© 2006 American Standard Inc. All Rights Reserved 2 18-GE08D1-2
Installer’s Guide
B
A
JOIST
JOIST
JOISTS
HEADER
JOISTS
HEADER
NAILS
REAR
FLANGE
FRONT OF
UNIT
HEADER
1"
NAILS
HEADER
MIN. SPACING TO
ANY COMBUSTIBLE
MATERIAL.
1"
APPROX. 3/4" FLANGES ON FIELD
FABRICATED DUCT OR PLENUM
ONE INCH DUCT SPACERS
FLOOR
SUBBASE
UNIT
AIR HANDLER SUBBASE
6. If supplementary heat is to be added, power supply
must be sufficient to carry the load. In addition,
minimum air flow settings, unit and duct clearances
to combustible material must be maintained as stated
on the air handler rating nameplate.
CAUTION
!
For air handlers not equipped with a factory installed
electric heater, a field installed heater is available from
American Standard Inc. Only heaters built by American
Standard Inc. are approved for use in the air handler.
These heaters have been designed and tested in accor-
dance with UL standards to provide safe and reliable
operation. A list of approved heaters is provided on the
air handler rating nameplate. Heaters that are not
factory approved could cause damage and are not
covered under equipment warranty.
NOTE:
If air handler is used WITHOUT a supplementary electric
heater, a sheetmetal plate is required to cover the open
hole in the airflow system. See Figure 2. Also seal the
cabinet air tight where the wire enters.
7. If field installed electric heaters are applied, mini-
mum air flow settings, unit and duct clearances to
combustibles must be maintained as stated on
the air handler rating nameplate.
8. If the unit is installed without a return air duct,
applicable local codes may limit this air handler to
installation only in a single story residence and
within conditioned space.
9. If the outdoor unit is to be installed later, or by
others, then installation of the air handler must be
made to allow access for refrigerant lines, or attach
refrigerant lines to air handler when installing.
10. Make sure there are provisions for installing
condensate drain lines.
This area may also be used for other purposes, includ-
ing an electric hot water heater – but in no case shall
a fossil fuel device be installed and/or operated in
the same closet, alcove or utility room.
In addition, these air handlers are suitable for installa-
tion in an attic, garage or crawl space with ducted
supply and return air.
This equipment has been evaluated in accordance with
the Code of Federal Regulations, Chapter XX, Part 3280
or the equivalent. “SUITABLE FOR MOBILE HOME
USE.”
For proper installation the following items must be
considered:
1. If adequate power is available and correct according to
nameplate specifications.
2. Insulate all ducts, particularly if unit is located
outside of the conditioned space.
3. To ensure maximum efficiency and system perfor-
mance, the existing supply and return duct system
static pressures must not exceed the total available
static pressure of the air handler. Reference ACCA
Manual D, Manual S and Manual RS along with the
air handler Product Data and Service Facts for
additional information.
4. It is recommended that the outline drawing be studied
and dimensions properly noted and checked against
selected installation site. By noting in advance
which knockouts are to be used, proper clearance
allowances can be made for installation and possible
future service.
5. When air handler with supplementary heater is to
be installed in the downflow position on combus-
tible flooring an accessory subbase (TAYBASE101
for 2TEC3F18-36A, TAYBASE102 for 2TEC3F55
and TAYBASE100 for 2TEC3F42A-60A) must be
used. See Figure 1.
1
FLOOR OPENING - SIZE
MODEL NO. A B
TAYBASE100 23-3/4 14-13/16
TAYBASE101 21-3/4 14-13/16
TAYBASE102 26-3/4 14-13/16

18-GE08D1-2 3
Installer’s Guide
11. If side, front or rear return is required, air handler
must be elevated or placed on a plenum
(TAYPLNM100). Connecting return duct directly to
the side, front or rear of the cabinet is not ap-
proved.
12. Route refrigerant and condensate drain lines away
from air handler so they do not interfere with
access panels and filters.
13. When external accessories are used, the additional
height and width requirements must be considered
in the overall space needed.
14. These units are not approved for outdoor installa-
tion.
15. These units are approved for draw-through
application only
NOTE: Condensation may occur on the
surface of the air handler when installed in an
unconditioned location.When units are in-
stalled in unconditioned spaces, verify that all
electrical and refrigerant line penetrations on
the air handler are sealed completely.
NOTE: When installing the 4 and 5 ton air
handlers in attic or tight applications, the
cabinet may be disassembled into two sec-
tions.
B. UNIT INSTALLATION
UPFLOW
a. For maximum efficiency, the horizontal drip
tray should be removed. Tray removal requires
that the coil be removed by sliding the coil out
on the coil channel supports. The tray is
detached by removing the two screws at the
drain pan and the two screws holding the two
brackets at the top of the coil.
b. Remove the factory installed baffle assembly
from the apex of the coil by removing the 5/16"
hex head screws.
Replace this baffle with the factory supplied
narrow coil baffle using the screws removed
previously (See Figure 3).
c. Position unit on Pedestal or other suitable
foundation. If Pedestal is not used, a frame
strong enough to support the total weight must
be provided.
Provide a minimum height of 14 inches for
proper unrestricted airflow.
d. If a return air duct is connected to the air han-
dler, it must be the same dimensions as shown in
the outline drawing.
From Dwg. 21B140413
4" 6"
17"
1"
3/8"
1/4" HOLES (4)
ACCESSORY BAY99X123
IF AIRHANDLER IS USED
WITHOUT A FACTORY FURNISHED
SUPPLEMENTARY HEATER, A PLATE IS REQUIRED TO COVER
THE OPEN HOLE IN THE AIR FLOW SYSTEM
DOWNFLOW BAFFLE KIT
X
X
7/8" GASKET
SCREWS TO
REMOVE COIL
SCREWS TO
REMOVE COIL
DISCARD HORIZONTAL
DRIP TRAY
1/2" GASKET
INSIDE SURFACE
OF BAFFLE
7/8" GASKET
SECT. X-X
(TYP. BOTH SIDES)
FILL WITH SEALANT
WATER
BLOW-OFF
BAFFLES
ATTACH WITH
2 SCREWS
EACH SIDE
WATER
DIVERTER
BAFFLES
(5TON ONLY)
2
4
Remove
and
Discard
Replace
with
Narrow
Baffle
FOR MAXIMUM EFFICIENCY ON
HORIZONTAL LEFT,
UPFLOW AND DOWNFLOW
3

418-GE08D1-2
Installer’s Guide
e. Pedestal and unit should be isolated from the
foundation using a suitable isolating material.
DOWNFLOW
a. For maximum efficiency, the horizontal drip
tray should be removed. Tray removal requires
that the coil be removed by sliding the coil out on
the coil channel supports. The tray is detached
by removing the two screws at the drain pan
and the two screws holding the two brackets at
the top of the coil.
b. Remove the factory installed baffle assembly
from the apex of the coil by removing the 5/16"
hex head screws.
Replace this baffle with the factory supplied
narrow coil baffle using the screws removed
previously (See Figure 3).
NOTE:
INSTALLATION OF THE DOWNFLOW BAFFLE KIT
INCLUDED WITH UNIT IS REQUIRED ON
DOWNFLOW APPLICATIONS. SEE FIGURE 4.
c. Detach the coil from the drain pan by removing
4 screws as shown in Figure 4.
d. Remove the front triangular baffle from the coil and
install the 1/2" wide gasket provided per Figure 4.
Trim the gasket length to fit the baffle. Reinstall
the baffle to coil, with gasket material compressed
against the coil.
e. Install the water blow-off baffles provided on each
side of the coil with the flange at the top as shown
in Figure 4. The bottom of the baffle is to be as
close to the bottom of the coil as possible.
f. Install the 7/8" wide gasket in each side of the
drain pan as shown in Figure 4 (sect. X-X).
g. Place the 2 water diverter baffles (5 ton model
only) underneath the coil on the inside edge of
the drain pan, Figure 4. Fill the bend in the
baffle which fits the inner edge of the drain pan
with RTV type adhesive/sealant before install-
ing the baffle.
h. The unit is then placed with the blower side
down and the coil is replaced on the coil channel
supports with the drain connections at the
bottom. The unit is now in downflow position
with front access.
i. When air handler with supplementary heater is
to be installed in the downflow position on
combustible flooring an accessory subbase
(TAYBASE101 for 2TEC3F18A-36A,TAYBASE101
for 2TEC3F18A and TAYBASE100 for
2TEC3F42A-60A) must be used. See Figure 1.
HORIZONTAL LEFT
a. For maximum efficiency and Customer ease of
filter maintenance, it is recommended that a
properly sized remote filter and grille be installed
for horizontal applications. Airflow should not
exceed the face velocity of the filter being used. The
factory installed filter should then be
removed from the unit.
b. To convert the unit to horizontal left, front access,
slide the coil out on the coil channel supports and
rotate the complete coil 180 degrees.
c. Remove the factory installed baffle assembly
from the apex of the coil by removing the 5/16"
hex head screws. Replace this baffle with the
factory supplied narrow coil baffle using the
screws removed previously (See Figure 3).
d. The coil is then inserted back into the cabinet on
the opposite side coil channel supports. The unit is
now horizontal left with front access.
e. Openings where field wiring enters the
cabinet must be completely sealed. Location of
power entry is shown on the Outline Drawing.
f. Cage nuts are not provided for horizontal
left suspension. However, if the unit is sus-
pended, it must be supported from the
bottom near both ends as well as the middle to
prevent sagging. The service access must remain
unobstructed.
If the unit is not suspended it must be supported
as mentioned above and isolated carefully to
prevent sound transmission. Vibration isolators
(purchased locally) must be placed under the unit.
g. It is always recommended that an auxiliary drain
pan be installed under a horizontal air handler (See
Condensate Piping) to prevent possible damage to
ceilings.
h. Isolate the auxiliary drain pan from the unit or
from the structure.
i. Connect the auxiliary drain pan to a separate
drain line (no trap is needed in this line) or route
outside the structure to a conspicuous location in
accordance with national and local codes.
HORIZONTAL RIGHT
a. For maximum efficiency and Customer ease of
filter maintenance, it is recommended that a
properly sized remote filter grille be installed for
horizontal applications. Airflow should not exceed
the face velocity of the filter being used. The
factory installed filter should then be re-
moved from the unit.
b. Unit is shipped from the factory in the upflow or
horizontal right configuration. Unit conversion is
not required.
c. The air handler is designed to be suspended by
using the cage nuts provided in the unit. Six 1/4"
– 20 threaded rods are required for the
2TEC3F18-42A models and Eight threaded rods
are required for the 2TEC3F48-60A models.
Other means of suspension are allowed as long
as the unit is supported from both ends as well as
the middle to prevent sagging and service access
is not obstructed.
d. If the unit is not suspended it must be isolated
carefully to prevent sound transmission. Vibration
isolators (purchased locally) must be placed
under the unit.

18-GE08D1-2 5
Installer’s Guide
e. It is always recommended that an auxiliary drain
pan be installed under a horizontal air handler (See
Condensate Drain Piping) to prevent possible
damage to ceilings.
f. Isolate the auxiliary drain pan from the unit or
from the structure.
g. Connect the auxiliary drain line to a separate drain
line (no trap is needed in this line) and terminate
according to local codes.
h. If a return duct is connected to the Air Handler,
it must be the same dimensions as the return
opening shown in the outline drawings.
C. DUCT CONNECTIONS
The supply and return air ducts should be connected to
the unit with flame retardant duct connectors.
Convertible duct flanges are provided on the discharge
opening to provide a “flush fit” for 3/4" or 1-1/2" duct board
applications. See the Outline drawing on page 9 for sizes
of the duct connections. After the duct is secured, seal
around the supply duct to prevent air leakage.
NOTE:
If the convertible duct flanges are not used, they must be
removed and discarded for proper airflow.
D. REFRIGERANT PIPING
IMPORTANT:
Refrigerant piping must be routed to maintain service access
to blower compartment and provide easy removal of filter
access panel and filter.
1. Refrigerant connections are made outside the
cabinet.
NOTE:
TXV bulb
MUST be protected (wrapped with wet rag) or
removed, while brazing the tubing. Overheating of the
sensing bulb will affect the functional characteristics and
performance of the air handler.
2. Installation of refrigerant lines is covered in the
installation instructions packaged with the outdoor
unit. Evacuation, leak testing and brazing procedures
are included in those instructions. Read those instruc-
tions before starting installation of refrigerant lines.
NOTE:
Torque specification for TXV equals 1/6 turn past finger
tight.
BRAZING TO EVAPORATOR SECTION
NOTE:
A brazing shield is provided in the information pack
accompanying this unit.This shield fits over the refriger-
ant fittings while brazing. Wet the shield before brazing.
See Figure 5.
IMPORTANT:
Do not unseal refrigerant tubing until ready to cut and fit
refrigerant lines.
1. Remove the sealing caps from indoor coil field
connections.
2. Field supplied tubing should be cut square, round and
free of burrs at the connecting end. Clean the tubing
to prevent contaminants from entering the system.
3. Run refrigerant tubing into the stub sockets of
indoor unit coil.
4. Braze and evacuate according to indoor and outdoor
installation instructions.
PAINTED AREAS OF UNIT MUST BE SHIELDED
DURING BRAZING.
E. CONDENSATE DRAIN PIPING
NOTE:
Make certain that the unit has been installed in a level
position to ensure proper draining.
The indoor blower is downstream of the evaporator coil
which creates a negative pressure at the condensate
drain connections during operation. The condensate
drain connections in front of the indoor coil are 3/4"
NPT. The lower connection is the primary drain. See
Figure 6.
Two secondary drain connections are provided for the
different orientations (See Figure 6). The lower of the
two should be connected as a backup to prevent conden-
sate overflow by a blocked primary drain.
For proper drainage of condensate, the following steps
should be followed:
1. The primary drain line must be trapped with a mini-
mum of 2" water seal as shown in Figures 7 & 8. Do
not use preformed 3/4" PVC running traps.

618-GE08D1-2
Installer’s Guide
WARNING
!
TO PREVENT INJURY OR DEATH DUE TO ELECTRICAL
SHOCK OR CONTACT WITH MOVING PARTS, LOCK
UNIT DISCONNECT SWITCH IN OPEN POSITION
BEFORE SERVICING UNIT.
The use of Field fabricated or manufactured traps
as shown in Figures 7 & 8 is acceptable. The
manufactured trap shown in Figure 7 allows for a
float switch option to be added.
Refer to the manufacturer’s data and instructions
for details.
2. The trap must be located within 4 feet of the air
handler drain outlet connection.
3. It is recommended that a clean-out tee or cross
be installed in the primary drain line for future
maintenance (See Figures 7 & 8)
4. Do not use reducing fittings in the condensate
drain lines.
5. Slope the drain lines downward a minimum of 1/4"
per foot.
6. Insulate the primary drain to prevent sweating.
7. Provide means for drainage to prevent winter
freeze-up of condensate line.
8. Do not connect the drain line to a closed drain
system.
2" MINIMUM
2" MINIMUM
MANUFACTURED TRAPS
EZT-105
FIELD FABRICATED TRAP
2" MIN.
2" MIN.
CAP OR PLUG
Trap must be within 4'
of air handler condensate
drain connection.
Close as possible
7
8
3/4" NPT Secondary
drain connection
3/4" NPT
Primary drain
connection
6
9. Use Teflon®tape on the air handler drain line
connections! Do Not Use pipe joint compound or
PVC/CPVC cement!
It is always recommended that an auxiliary drain pan
be installed under a horizontally installed air handler.
Connect the auxiliary drain line to a separate drain line
(no trap is needed in this line) and terminate according
to local codes.
NOTE:
DO NOT use a torch or flame near the plastic drain pan
coupling.
NOTE:
DO NOT tighten the drain pipe excessively. Support the
condensate piping and traps outside the unit to pre-
vent strain on the drain coupling.
F. ELECTRICAL — POWER WIRING
1. These Air Handlers are shipped from the factory
wired for 230 volts. The units may be wired for 208
volts. Follow instructions on unit wiring diagram
located on blower housing and in the Service Facts
document included with the unit.
2. The selection of wire and fuse sizes should be made
according to the Minimum Branch Circuit Ampacity
and the Maximum Overcurrent Device listed on the
unit nameplate.

18-GE08D1-2 7
Installer’s Guide
2/4TEC AIR HANDLER WITH HEAT PUMP
From Dwg. 21B801082 Rev. 1
NOTE:
On the 2TEC3F60 model, a 5th tap has been added.
Motor Tap #5 must be selected if a time delay funtion
is required.
3. Field wiring diagrams for electric heaters and unit
accessories are shipped with the accessory.
4. Wiring must conform to National and Local codes.
Ground unit per Local codes with good safety
procedures.
If an electric heater is not installed, connections are
made through the 7/8" knockout into the air handler
junction box to the two power leads and ground wire
connections which are located near the discharge of the
blower.
NOTE:
If air handler is used with or without a heater, the
7/8" electrical entry hole as well as any other cabinet
penetrations must be sealed air tight.
HOOK-UP DIAGRAMS
G. CONTROL WIRING
1. Connect wiring between indoor unit, outdoor unit
and thermostat. The use of color-coded low-voltage
wires is recommended.
2. Field wiring diagrams are provided which show the
low voltage wiring hook-up for a single speed
cooling only system (with supplementary heaters)
and a heat pump system (with supplementary
heaters). Plug in type electrical connectors are
provided for use with supplementary heaters.
IMPORTANT:
When supplementary heaters are installed, inspect to
insure that all packaging material has been removed.
NOTE:
Direct drive motors have bearings which are perma-
nently lubricated and under normal use lubrication
is not recommended.

818-GE08D1-2
Installer’s Guide
2/4TEC AIR HANDLERS WITH SINGLE SPEED COOLING UNIT, 1 STAGE HEAT
2/4TEC AIR HANDLER WITH SINGLE SPEED COOLING UNIT, 2 STAGE HEAT
From Dwg. 21B801083 Rev. 1
From Dwg. 21B801081 Rev. 1

18-GE08D1-2 9
Installer’s Guide
OUTLINE DRAWING FOR 2/4TEC3F18-60A
L
2/4
R-22 (2TEC) R-410 (4TEC)
Model No. A B C D E F G H FLOW
CONTROL
GAS LINE
BRAZE
LIQ.
LINE
BRAZE
GAS
LINE
BRAZE
LIQ.
LINE
BRAZE
*TEC3F18A
43
21.50 19.50
15.57
3.65 5.77
3.62 1.89
TXV/NB
5/8 1/4 1/2 1/4
*TEC3F24A
3/4 5/16
5/8 5/16
*TEC3F30A 45 17.57 3/4 5/16
*TEC3F36A
7/8
3/8
3/4 3/8
*TEC3F42A 51.75 23.50 21.50 18.33 4.65 6.77 3/4 3/8
*TEC3F48A,
*TEC3F60A 57.90
23.50 21.50 30.47 4.65 6.77
1-1/8 7/8 3/8
*TEC3F55A 26 24 27.12 5.90 8.02 3.21 1.48
FIG. 1 FIG. 2
MODEL NO. J K J K L
2/4TEC3F18, 24, 30, 36
12.02
19.22
11.02
18.22 n/a
2/4TEC3F42 21.22 20.22
2/4TEC3F48,60 31.15
2/4TEC3F55 23.72 22.72 n/a

10 18-GE08D1-2
Installer’s Guide
CAGE NUT MOUNTING INSTRUCTION FOR 2/4TEC AIR HANDLERS
MODEL A B H W
2/4TEC3F18A 17.00 39.00 43.00 21.50
2/4TEC3F24A 17.00 39.00 43.00 21.50
2/4TEC3F30A 19.00 41.00 45.00 21.50
2/4TEC3F36A 19.00 41.00 45.00 21.50
2/4TEC3F42A 23.80 47.75 51.75 23.50
2/4TEC3F48A 31.20 58.75 57.90 23.50
2/4TEC3F55A 29.00 53.90 57.90 26.00
2/4TEC3F60A 31.20 58.75 57.90 23.50
Eight cage nuts are located on
this side of the air handler
2/4TEC3F48A & 60A
Are two piece cabinets

18-GE08D1-2 11
Installer’s Guide
NOTES
H. CHECKOUT PROCEDURE
1. Check the Air Handler operation and installation in
accordance with this instruction on page 12.
2. “Operational Procedure” for the system installation
can be found in the outdoor unit installer guide and
will be compatible with this Air Handler.
CAUTION
!
Cardboard packing material must be removed from
inside the blower assembly before starting the unit.
Failure to do so may cause indoor blower motor failure.

7/05
Since the manufacturer has a policy of continuous product and product data improvement, it reserves the right to
change design and specifications without notice.
American Standard Inc.
6200Troup Highway
Tyler,TX 75711
For more information contact
your local dealer (distributor)
SUPPLEMENTARY HEATERS CHECKOUT PROCEDURES,
IF USED DOES HEATER REQUIRE A SPECIAL CIRCUIT?
SEE “LIMITATIONS AND RECOMMENDATIONS”
1. Be sure the disconnect switch is “OFF”, and safety label (if any) is attached ................................................ [ ]
2. Check on field wiring for tight connections and grounding according to codes .............................................. [ ]
3. Check circuit protection for proper size per nameplate specifications ........................................................... [ ]
4. Check control box panel — in place and secured ............................................................................................ [ ]
NOTE:
OPERATION OF HEATERS MUST BE CHECKED DURING THE OPERATION CHECK OF THE TOTAL SYSTEM.
CHECKOUT PROCEDURES
After installation has been completed, it is recommended that the Air Handler be checked against the following
checklist.
1. Make sure power is “OFF” at power
disconnect switch ................................................... [ ]
2. Check all field wiring for tight connections. See
that grounding of unit is in accord with code ......... [ ]
3. Make sure unit suspension (if used) is secure
and that there are no tools or loose debris in,
around or on top of the unit ................................... [ ]
4. Check all duct outlets; they must be open
and unrestricted ..................................................... [ ]
5. Check drain lines and be sure
all joints are tight .................................................. [ ]
6. Make sure secondary drain pan is installed .......... [ ]
7. Check power supply for correct requirements
per unit nameplate ................................................ [ ]
8. Check filters for proper size. Inform owner
of proper procedure for removal and
reinstallation ......................................................... [ ]
9. Energize the system and carefully observe its
operation; make any necessary adjustment........... [ ]
10. Instruct owner, engineer (if possible) on proper
operating procedure and leave Use and Care
Manual with owner ................................................ [ ]
Installer’s Guide